I am seeking to certify the relationship between a Thomas Mansfield (married Esther Mullett in 1812 at Southwark in Surrey) and his probable parents Joseph Mansfield & Elizabeth (Betty) Knott. If they are indeed his parents, he was probably born 3 Nov 1791 at Shaftesbury St James. Unable however to certify the link. Children include (in order) Joseph, Thomas, Thomas, James Mullett, Elizabeth, Esther, Isaiah Mullett, Sarah Cooper, John & William. Any help anyone can give would be much appreciated.